Update px-arguments.md

Author: LiamConnors

doc/python/px-arguments.md

@@ -170,13 +170,11 @@ fig.show()
 
 ### Input Data as Non-Pandas `DataFrame`s
 
-**New in 5.16**
+*New in 5.15 and 5.16*
 
-In the examples above, we've used Pandas DataFrames. You can also provide another type of DataFrame to the `data_frame` argument if that DataFrame has a `to_pandas` method or supports the [Python dataframe interchange protocol](https://data-apis.org/dataframe-protocol/latest/index.html), for example, a [Polars](https://www.pola.rs/) DataFrame.
+In the examples above, we've used Pandas DataFrames. You can also provide another type of DataFrame to the `data_frame` argument if that DataFrame has a `to_pandas` method (new in 5.15) or supports the [Python dataframe interchange protocol](https://data-apis.org/dataframe-protocol/latest/index.html) (new in 5.16), for example, a [Polars](https://www.pola.rs/) DataFrame. Plotly Express uses Pandas internally to process the data.
 
-Plotly Express uses Pandas internally to process the data. When you provide a Non-Pandas DataFrame to the `data_frame` argument of a Plotly Express function, the entire DataFrame is converted to a Pandas DataFrame.
-
-If you are using a type of DataFrame that doesn't have a `to_pandas` method, but supports the Python dataframe interchange protocol, you'll need to have Pandas version 2.0.3 or later installed. 
+If you are using a type of DataFrame that doesn't have a `to_pandas` method, but supports the Python dataframe interchange protocol, you'll need to have Pandas version 2.0.3 or later installed.
 
 In this example, we use a Polars DataFrame. If you are using Polars, you'll need to install `pyarrow`, which is used by its [`to_pandas` method](
 https://pola-rs.github.io/polars/py-polars/html/reference/dataframe/api/polars.DataFrame.to_pandas.html)